Radial drill-press.



M; HIMOFP. RADIAL DRILL PRESS. APPLIoA'rIoN H Lrsn JULY z2. laos.

Patented July 16, 1912.

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vRADIAL DRILL PRESS. APPLICATION FILED JULY 2z, 1909.

1,032,408. Patented July 16, 19,12.

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MAX HIlMFF, OF NEW YORK, N. Y.

' RADIAL DRILLPBESS.

Specification of' Letters Patent.

Application led July 22, 1909. Serial No. 508,911.

Patented July 16, 1912.

cularly with respect to their axes in suchv manner thatadjacent drills may be brought as near together asthe radii of their chucksl"and supports will permit, the drills `also being permitted to be moved radially of their axes rearwardly topa point approxlmating the location vof the supporting column,

whereby increased efficiency ofv the press may be attained. l

My invention comprises the novel details of improvement and cmbinations of parts that will be more fully hereinafter set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawings forming part hereof; wherein,

Figure 1 is a front elevation of a multiple radial drill press embodylng my invenl-tion', parts being removed; Fig. 1a is a iietail view, in section, of column 3; Fig.l 2

is a side elevation thereof partly in section; y

Fig. 3 is an enlarged detail sectional view showing means for securing the drill support to its column in adjusted position;

`iFig. 4 is a detail section on the line 4, 4,

in Fig. 3; Fig. 5 is a detail section of the drill raising vand lowering devices; Fig. 6 is a perspective view of a drill retaining fmember; and Fig. 7 is a sectional detail of' the drill controlling devices. y f.

Similar numerals of reference indicate corresponding parts in the several views.

vThe numeral 1 indicates .a suitable base, provided with a table 2 for the work adapted to be raised and lowered` and held in set position in 'any well knownmanner. Upon base 1 is supported any suitable number of columnsv 3 upon which the drills and theirimmediate operating devices are supported. As the devices for supporting and adjusting the drills are similar for eachcolumn 8 it will sulice to describe one such set of de' vices as follows :-Upon column 3 a sleeve 4 is mounted for rotative-adjustment, which sleeve rests upon a suitable shoulder 5 on sleeve 4 in set position, for which purpose Ihave shown a cone -receiving column 3,l

the tapering surface of which cone is adapted to enter a tapering recess or seat 4'" formed in the upper end o f sleeve 4, a key 7 iittedin column 3 and' entering a groove 6a 1n cone Gilocking said cone vagainst rotation upon column 3, but permitting said cone to have longitudinal adjustment upon said column. At 8 is a nut fitting threads 9 on column 3 and adapted to be set against*- cone 6 whereby when the latter is thus forced int-o seat 4, when sleeve 4 has beenl Aadjusted to the desiredv angular. position, said sleeve will be held rigidly in such posit-ion. Sleeve 4 supports the drill holding and adjusting devices which are mounted upon said sleeve to have radial adjustment.

For this purpose I have shown a suitable' arm or block 10 mounted to slide upon a projection 11 carried by sleeve 4, the arm 10 v and projection'll shown having dovetailed ways between them. A gib 12 may be provided between the parts 10`and 11, and set screw- 13 acting upon said gib may hold said parts in set position. Arml 10, at its forward end, has suitable bearings for the drill spindle 14 which revolves in the usual rack member 15 with which rack the 'gear 16 meshes. The shaft of said gear is shown supported by arm 10 and provided with an 'angular socket 17 (see Fig. 2) adapted to. receive a correspondingly angular shank of an operating handle 18 for raising and lowering the drill in wellknown manner. For the purpose of holding the drill in set position, as when the table and work are raised. to the drill, I provide a suitable series of holes 19 in vthe metal surrounding socket 17, and provide a handle 20 with Aa shank 21 adapted to fit socket 17, which 4handle 20 is provided with one 'or moreY holes 20a to receive a pin adapted to entei` holes19,whereby the drill may be raised and lowered and held in set position. I have shown the rack member 15 as normally held raised by a weight 22 having a cord or the like -23 passing over pulleys 24 on block `10 and attached to rack member 15, a suitable guide 25 carried by block 10 being adapted to guide the weight 22. Spindle 14 is connected by a telescopic shaft 26 with spindle v27, suitably interposed universal joints 28, 28a connecting the parts 14, 26 and 27 for rotating spindle -14. The lower joint I28 connects with a spindle 14u jour frame 30 secured on columns 3, a pulley' 31 on spindle 27 receiving a belt 32 -from pulley 33 journaled on frame 30, the sleeve of pulley 33 being connected with a pulley 34 receiving belt 35 from drive pulley 36,

shown supported by base 1.

For the purpose of providing accurate adjustment of arms 10 and for convenience in making such adjustment I provide a threaded rod or screw shown journaled in a bearing 41 on arm 10 and provided with collars 42 on opposite sides of the bearing, the screw 40 meshing in suitable threads or a nut in a transverse aperture 43 in sleeve 4 (Fig. 3), whereby when screw 40 is rotated the corresponding arm 10 will be adjusted radially of sleeve 4 with respect to column 3 screw 40, or by the urtheraid of screw 13. Screw 40 is provided with a head 44 having suitable scale indications thereon, as in the nature of a gage to co-act with a pointer or the like extending from sleeve 4, whereby the desired adjustment of arm 10 may be gaged. Head 44 may be detachably connected with screw 40 so as to be removed to prevent interference when adjacent sleeves are rotated toward each other.

Vith the parts varranged as set forth either'of the sleeves 4 maybe adjusted rotatively to the desired position and so held,

` and :the corresponding arm 10 may be ad justed in a line parallel to a tangent of a circle described around the axis of the column or the sleeve and held in such position, the' telescopic shaft- 26 permitting such adjustments, and one or more of the drills may be rotated as required. The feeding of the drills is effected in a well-known manner, or when the drills are `set to definite positions the table may be raised to push thework against the drills. Arm 10 is so arranged at 'one side of column 3 that said block may be pushed rearwardly so far that the drill may be brought back substantially on a line with column 3, or arm 10 may be pushed outwardly to the limitpf the capacity of the parts and so held, and by roand' heldin set position by* tatively adjusting sleeve 4 af large'radius `of drill operation may be eifected. Furthermore, the arrangement is such that two adjacent drills may be adjusted as close together as their chucks and chuck supports will permit without interference from the arms 10 whlch do not project forwardly be.

yond the drills, thereby leaving a wide space within which the drills may be adjusted. The arrangement thereforeprovides f increased capacity of multiple radial drill presses, as known to me,for drilling holes relatively close together 'in the work, as well as for general drilling. v,

n Changes may be made in the details of construction `and arrangements set forth,

within the scope of the appended claims, without departing from the spirit of my invention. I

Having now described my invention what I claim is 1. A drill press comprising a column, a

sleeve journaled thereon, a cone mountedl upon said column and adapted to co-act with said sleeve, means to cause said cone to lock said sleeve to said column, and drill operating devices adjustably carried by said sleeve.

2. A drill press comprising a column, a sleeve journaled thereon and provided with a seat, a cone surrounding 'the column adapted to co-act with saidA seat, a key between said column and cone, a nut on a threaded portion of said column to act on' said cone,vand drill operating devices carried by said sleeve.

3. A drill press comprising a column, an armmeans for adjusting said arm with respect to said column, drill operating devices carried by said arm and comprising a rack and gear, the material adjacent said gear having a plurality of holes disposed around the axis of said gear, and a handle having means for detachable connection with said gear and provided with one or more 4holes lfor holding said gear and rack in set position.

Signed at New York city, in the county of New York, and State of New York, this 21st day of July, A. D. 1909.

MAX HIMOFF.

Witnesses RALPH E. ROBERTS, T. F. BoURNE. 

